Mahesh Poojary S | 5afd06c | 2015-08-21 14:51:04 +0530 | [diff] [blame] | 1 | /*
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| 2 | * Copyright 2015 Open Networking Laboratory
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 | package org.onosproject.pcepio.types;
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| 17 |
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| 18 | import java.util.Objects;
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| 19 |
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| 20 | import org.jboss.netty.buffer.ChannelBuffer;
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| 21 | import org.onosproject.pcepio.protocol.PcepVersion;
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| 22 | import org.slf4j.Logger;
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| 23 | import org.slf4j.LoggerFactory;
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| 24 |
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| 25 | import com.google.common.base.MoreObjects;
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| 26 |
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| 27 | /**
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| 28 | * Provide Link Protection Type.
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| 29 | */
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| 30 |
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| 31 | public class LinkProtectionTypeTlv implements PcepValueType {
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| 32 |
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| 33 | /* Reference :[RFC5307]/1.2
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| 34 | * 0 1 2 3
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| 35 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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| 36 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 37 | | Type=[TDB38] | Length=2 |
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| 38 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 39 | |Protection Cap | Reserved |
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| 40 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 41 | */
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| 42 | protected static final Logger log = LoggerFactory.getLogger(LinkProtectionTypeTlv.class);
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| 43 |
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| 44 | public static final short TYPE = 20; //TDB38
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| 45 | public static final short LENGTH = 2;
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| 46 | private final byte protectionCap;
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| 47 | private final byte reserved;
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| 48 |
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| 49 | /**
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| 50 | * Constructor to initialize protectionCap.
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| 51 | *
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| 52 | * @param protectionCap Protection Cap
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| 53 | */
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| 54 | public LinkProtectionTypeTlv(byte protectionCap) {
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| 55 | this.protectionCap = protectionCap;
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| 56 | this.reserved = 0;
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| 57 | }
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| 58 |
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| 59 | /**
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| 60 | * Constructor to initialize protectionCap, reserved.
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| 61 | *
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| 62 | * @param protectionCap Protection Cap
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| 63 | * @param reserved Reserved value
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| 64 | */
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| 65 | public LinkProtectionTypeTlv(byte protectionCap, byte reserved) {
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| 66 | this.protectionCap = protectionCap;
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| 67 | this.reserved = reserved;
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| 68 | }
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| 69 |
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| 70 | /**
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| 71 | * Returns Protection Cap.
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| 72 | *
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| 73 | * @return protectionCap Protection Cap
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| 74 | */
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| 75 | public byte getProtectionCap() {
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| 76 | return protectionCap;
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| 77 | }
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| 78 |
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| 79 | @Override
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| 80 | public PcepVersion getVersion() {
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| 81 | return PcepVersion.PCEP_1;
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| 82 | }
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| 83 |
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| 84 | @Override
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| 85 | public short getType() {
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| 86 | return TYPE;
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| 87 | }
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| 88 |
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| 89 | @Override
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| 90 | public short getLength() {
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| 91 | return LENGTH;
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| 92 | }
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| 93 |
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| 94 | @Override
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| 95 | public int hashCode() {
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| 96 | return Objects.hash(protectionCap, reserved);
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| 97 | }
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| 98 |
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| 99 | @Override
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| 100 | public boolean equals(Object obj) {
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| 101 | if (this == obj) {
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| 102 | return true;
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| 103 | }
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| 104 | if (obj instanceof LinkProtectionTypeTlv) {
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| 105 | LinkProtectionTypeTlv other = (LinkProtectionTypeTlv) obj;
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| 106 | return Objects.equals(protectionCap, other.protectionCap) && Objects.equals(reserved, other.reserved);
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| 107 | }
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| 108 |
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| 109 | return false;
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| 110 | }
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| 111 |
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| 112 | @Override
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| 113 | public int write(ChannelBuffer c) {
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| 114 | int iLenStartIndex = c.writerIndex();
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| 115 | c.writeShort(TYPE);
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| 116 | c.writeShort(LENGTH);
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| 117 | c.writeByte(protectionCap);
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| 118 | c.writeByte(reserved);
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| 119 | return c.writerIndex() - iLenStartIndex;
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| 120 | }
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| 121 |
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| 122 | /**
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| 123 | * Reads the channel buffer and returns object of LinkProtectionTypeTlv.
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| 124 | *
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| 125 | * @param c input channel buffer
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| 126 | * @return object of LinkProtectionTypeTlv
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| 127 | */
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| 128 | public static PcepValueType read(ChannelBuffer c) {
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| 129 | byte protectionCap = c.readByte();
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| 130 | byte reserved = c.readByte();
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| 131 | return new LinkProtectionTypeTlv(protectionCap, reserved);
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| 132 | }
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| 133 |
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| 134 | @Override
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| 135 | public String toString() {
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| 136 | return MoreObjects.toStringHelper(getClass()).add("Type", TYPE).add("Length", LENGTH)
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| 137 | .add("ProtectionCap", protectionCap).toString();
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| 138 | }
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| 139 | } |